| Nominate Nominated! | Absolute Comfort Control Services |
| Nominate Nominated! | Action Air Heating and Air Conditioning Inc |
| Nominate Nominated! | Atkinson Plumbing |
| Nominate Nominated! | CK Mechanical |
| Nominate Nominated! | Guaranteed Comfort Heating & Cooling |
| Nominate Nominated! | Infinity Heating & Cooling |
| Nominate Nominated! | Isaac's Heating, Cooling & Mechanical Inc. |
| Nominate Nominated! | Lakeshore Gas |
| Nominate Nominated! | Langemann Heating and Cooling |
| Nominate Nominated! | Lekter Industrial Service |
| Nominate Nominated! | M&M Global Mechanical |
| Nominate Nominated! | Martin's Sheet Metal Co. Ltd |
| Nominate Nominated! | Murdoch Heating & Cooling |
| Nominate Nominated! | Northern Climate Heating and Cooling |
| Nominate Nominated! | Northstar Plumbing Windsor |
| Nominate Nominated! | Ole' Walkerville Plumbing |
| Nominate Nominated! | Plumbing Now |
| Nominate Nominated! | Powerhouse Combustion |
| Nominate Nominated! | Precision Gas |
| Nominate Nominated! | Reliance Home Comfort |
| Nominate Nominated! | Riverside Gas Piping Co |
| Nominate Nominated! | Syles Mechanical Services Ltd |
| Nominate Nominated! | Tom Bradd Heating And Cooling Co Ltd |
| Nominate Nominated! | Weir Bros Heating & Cooling Ltd |